An excursion train traverses a picturesque red-rock canyon along the Verde River.

A reproduction of earth's many biomes.

An off-the-beaten path cave with an underground lake.

Legend says train robbers stashed their gold within the depths of this unusual cave.

After a short-lived attempt to bring America in line with the rest of the world, this road was left in metric.

Run by members of the Tohono O'odham Nation, this community farm nurtures traditional desert cultivars.

This church on a Tohono O'Odham reservation has stood since 1797.

This collection of neon icons is preserving Arizona's history, one sign at a time.

In Tucson a giant metal snake helps pedestrians cross a busy highway.

Sleep where gangsters fell amidst smoke and flame, with nary a bullethole to show for the legendary struggle.

America's most famous museum of medical oddities is home to the remains of Albert Einstein's brain.

World's first "penitentiary," meant to be humane, drove men insane.

This shop filled with oddities and knick-knacks is named for a 19th-century charlatan.

These unusual rooms on wheels are holdovers from the 1960s.

This little museum in the town where zombies were born celebrates the living dead.

At Washington's Dulles Airport is a satellite museum (no pun intended) with three quarters of a million square feet of aircraft history.

This pun was simply waiting to come to life, and one defense contractor made it so.

Mutant vegetables, transgenic mosquitos, and atomic rodents span the walls of this one-of-a-kind museum.

A model of a dinosaur that was named for Andrew Carnegie stands outside the museum that also bears his name.

The United States’s oldest funicular railway glides up and down a steep Pittsburgh street.

A beautiful oddities shop crammed with strange and morbid curiosities.